Unitree G1 EDU 1.5.2 Unauthenticated RCE via DDS Bridge and Path Traversal (CVE-2026-76639) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-76639

Unitree G1 EDU 1.5.2 Unauthenticated RCE via DDS Bridge and Path Traversal

Answer in brief

CVE-2026-76639 records a Unknown severity vulnerability in Unitree G1 EDU 1.5.2 Unauthenticated RCE via DDS Bridge and Path Traversal. The current sources do not mark it as known exploited. The current feed maps Unitree Robotics/G1 EDU (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 27, 2026Updated Aug 27, 2026Source checked Aug 27, 2026First seen by HOL Aug 27, 2026Material review Aug 27, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps Unitree Robotics/G1 EDU (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
Unitree Robotics/G1 EDUgeneric	0	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for Unitree Robotics/G1 EDU.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Aug 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 27, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 27, 2026

Sources and claim methodology

Upstream source description

Unitree G1 EDU firmware through 1.5.2 contains an unauthenticated remote code execution vulnerability that allows network-adjacent attackers to execute arbitrary commands as root by chaining three weaknesses: an unauthenticated WebRTC-to-DDS bridge on TCP port 9991, a static AES-128 key stored with world-readable permissions, and a path traversal flaw in the chat_go knowledge upload API. Attackers can publish DDS control messages to restart the bashrunner service, plant a malicious payload in its script execution directory via path traversal, and trigger execution of that payload as uid 0 through the bashrunner shell subprocess.

Quoted source text, attributed separately from HOL analysis.